Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe99f3340ec7353…

MALICIOUS

PDF

79.1 KB Created: 2021-03-06 22:27:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c86c3afb3a9e93ffea42c3361b224799 SHA-1: dc89e2ebfd872c3537c820a52fe461a075b3ec0a SHA-256: dbe99f3340ec7353fd178624de8c570597a45814ab99e31cb1a5eea96b60a0e7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a page related to 'soccer drills for 8-10 year olds', which is likely a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest the document is designed to redirect users to a malicious site, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/strik?utm_term=soccer+drills+for+8-10+year+olds PDF link annotation
    • https://cdn.sqhk.co/nogawevorus/hPhfvje/ncis_season_16.pdfIn PDF document text
    • http://hamsterbig.com/fenolelbw6h.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/XBidjgw/36174841899.pdfIn PDF document text
    • http://vorgazme.com/in_spite_of_despite_exerciseay40f.pdfIn PDF document text
    • http://beautysss.site/plural_nouns_worksheets_4th_gradegev9q.pdfIn PDF document text
    • http://azakalaza5.xyz/boluvorudnpt50.pdfIn PDF document text
    • http://amsidisi.xyz/pk3ds_3ds_rom_editor_randomizer5nl96.pdfIn PDF document text
    • http://rofuxipof.mywebcommunity.org/linimedexumevizilax.pdfIn PDF document text
    • https://cdn.sqhk.co/nedupugifuka/PggFnic/field_hockey_coaching_jobs_near_me.pdfIn PDF document text
    • http://espaceclient-cmb.com/the_columbian_exchange_worksheet_answer_keyniyqa.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/JggJ1nB/94158750391.pdfIn PDF document text
    • http://itasummer.fun/46939023987a7pe1.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/bid0jgH/zevizufotepiwebekanol.pdfIn PDF document text
    • http://fastpysystem.online/703117799287hxh5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vovuzize/58997020107.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/online_android_virus_scanner_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/19386728054.pdfIn PDF document text
    • http://gakajitaju.atwebpages.com/45788881487.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/autocad_2007_tutorial_floor_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/lg_android_master_reset.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF851 5640 bytes
SHA-256: 758153575983756a459ea5d677d97b1a7525bdf9530f787f4ad87c329d129c53
font_01_sfnt_off00010bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BAB 10440 bytes
SHA-256: ebdfc8418cc0c2eb96bb0f2c0a2a32dd849752c9f4f5c1f82f0190707e5da271

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